GLAUCUS GULL. 
147 
.V^ TA TORES. 
LARIDJE. 
PLATE CCCVII. 
GLAUCUS GULL. 
LARUS GLAUCUS. 
The present species is a winter visitant in the Shetland 
Islands, arriving in the month of October from more 
northern regions, and departing again in April. Some 
instances have been mentioned of its occurrence in the 
southern parts of Britain, but these have generally proved 
to be young birds in immature states of plumage. 
The Glaucus Gull is a regular inhabitant of the most 
northern countries of the globe, and frequently associates 
with the ivory gull. 
In Spitzbergen, Greenland, and Norway, both species 
assemble every summer, and are found to breed on the 
most isolated cliffs that bound those coasts, or on rocks 
that stand in the open sea. M. Faber, who has explored 
those northern regions, mentions the western coast of 
Iceland as being the most southern spot where the Glaucus 
Gull breeds, and where it may be seen annually by hun¬ 
dreds. In Iceland, however, the ivory gull is not met 
with. 
^'OL. VII. 
o 
